visibilitysystem.h

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#pragma once
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
#include "math/mat4.h"
#include "jobs/jobs.h"
#include "math/bbox.h"
#include "resources/resourceid.h"
#include "graphics/graphicsentity.h"
#include "models/modelcontext.h"
#include "threading/event.h"
#include "jobs2/jobs2.h"
 
namespace Visibility
{
 
struct BoxSystemLoadInfo
{
    Resources::ResourceName path;   // path to authored box system
};
 
struct PortalSystemLoadInfo
{
    Resources::ResourceName path;   // path to authored portal system
};
 
struct OctreeSystemLoadInfo
{
    bool worldExpanding;            // if true, will cover the entire game world, and the next fields are unused
    uint cellsX, cellsY, cellsZ;    // how many cells per unit dimension
    uint width, height, depth;      // total size of the tree
    Math::vec4 pos;                 // center position of tree
};
 
struct QuadtreeSystemLoadInfo
{
    bool worldExpanding;            // if true, will cover the entire game world, and the next fields are unused
    uint cellsX, cellsY;            // how many cells per unit dimension
    uint width, height;             // total size of the tree
    Math::vec4 pos;                 // center position of tree
};
 
struct BruteforceSystemLoadInfo
{
    // empty on purpose
};
 
class VisibilitySystem
{
public:
 
    VisibilitySystem();
 
    virtual void PrepareObservers(const Math::mat4* transforms, bool* orthoFlags, Util::Array<Math::ClipStatus::Type>* results, const SizeT count);
    virtual void PrepareEntities(const Math::bbox* transforms, const uint32* ranges, const Graphics::GraphicsEntityId* entities, const uint32_t* entityFlags, const SizeT count);
    virtual void Run(const Threading::AtomicCounter* previousSystemCompletionCounters, const Util::FixedArray<const Threading::AtomicCounter*>& extraCounters);
 
    const Threading::AtomicCounter GetCompletionCounter(IndexT i) const;
    const Threading::AtomicCounter* GetCompletionCounters() const;
 
protected:
 
    Math::vec3 center;
    Math::bbox boundingbox;
 
    struct Observer
    {
        const Math::mat4* transforms;
        const bool* isOrtho;
        Util::Array<Math::ClipStatus::Type>* results;
        SizeT count;
        Util::Array<Threading::AtomicCounter> completionCounters;
    } obs;
 
    struct Entity
    {
        const Math::bbox* boxes;
        const Graphics::GraphicsEntityId* entities;
        const uint32* ids;
        const uint32_t* entityFlags;
        SizeT count;
    } ent;
};
 
} // namespace Visibility